diff --git a/extensions/aerial-photo/examples/item.json b/extensions/aerial-photo/examples/item.json
index 85ecc25f..2bd6858b 100644
--- a/extensions/aerial-photo/examples/item.json
+++ b/extensions/aerial-photo/examples/item.json
@@ -5,7 +5,7 @@
   "id": "72360",
   "geometry": null,
   "properties": {
-    "datetime": "1952-04-23T00:00:00.000Z",
+    "datetime": "1952-04-22T12:00:00Z",
     "platform": "Fixed-wing Aircraft",
     "instruments": ["EAGLE IV"],
     "mission": "SURVEY_1",
diff --git a/extensions/camera/examples/item.json b/extensions/camera/examples/item.json
index 404ae546..d1bff9bf 100644
--- a/extensions/camera/examples/item.json
+++ b/extensions/camera/examples/item.json
@@ -5,7 +5,7 @@
   "id": "72360",
   "geometry": null,
   "properties": {
-    "datetime": "1952-04-23T00:00:00.000Z",
+    "datetime": "1952-04-22T12:00:00Z",
     "platform": "Fixed-wing Aircraft",
     "instruments": ["EAGLE IV"],
     "mission": "SURVEY_1",
diff --git a/extensions/film/examples/item.json b/extensions/film/examples/item.json
index cbb3aecd..27ccf522 100644
--- a/extensions/film/examples/item.json
+++ b/extensions/film/examples/item.json
@@ -5,7 +5,7 @@
   "id": "72360",
   "geometry": null,
   "properties": {
-    "datetime": "1952-04-23T00:00:00.000Z",
+    "datetime": "1952-04-22T12:00:00Z",
     "platform": "Fixed-wing Aircraft",
     "instruments": ["EAGLE IV"],
     "mission": "SURVEY_1",
diff --git a/extensions/historical-imagery/examples/collection.json b/extensions/historical-imagery/examples/collection.json
index def26c91..e4bdf583 100644
--- a/extensions/historical-imagery/examples/collection.json
+++ b/extensions/historical-imagery/examples/collection.json
@@ -11,7 +11,7 @@
       "bbox": [[170.54524, -45.80237, 170.56431, -45.81345]]
     },
     "temporal": {
-      "interval": [["1947-03-28T12:00:00.000Z", "1952-04-22T12:00:00.000Z"]]
+      "interval": [["1947-03-28T12:00:00Z", "1952-04-22T12:00:00Z"]]
     }
   },
   "providers": [
@@ -78,8 +78,8 @@
       }
     ],
     "scan:scanned": {
-      "minimum": "2018-06-30T12:00:00.000Z",
-      "maximum": "2019-12-31T12:00:00.000Z"
+      "minimum": "2018-06-30T12:00:00Z",
+      "maximum": "2019-12-31T11:00:00Z"
     },
     "proj:epsg": {
       "minimum": 2193,
diff --git a/extensions/historical-imagery/examples/item.json b/extensions/historical-imagery/examples/item.json
index 232a8485..175f4737 100644
--- a/extensions/historical-imagery/examples/item.json
+++ b/extensions/historical-imagery/examples/item.json
@@ -26,7 +26,7 @@
     ]
   },
   "properties": {
-    "datetime": "1949-03-09T12:00:00.000Z",
+    "datetime": "1949-03-09T12:00:00Z",
     "platform": "Fixed-wing Aircraft",
     "instruments": ["EAGLE IV"],
     "mission": "399",
@@ -44,7 +44,7 @@
     "film:physical_condition": "Film scratched",
     "film:physical_size": "18cm x 23cm",
     "scan:is_original": true,
-    "scan:scanned": "2018-09-30T12:00:00.000Z"
+    "scan:scanned": "2018-09-30T11:00:00Z"
   },
   "links": [
     {
diff --git a/extensions/scanning/examples/item.json b/extensions/scanning/examples/item.json
index 4d5cf1b4..e8883de7 100644
--- a/extensions/scanning/examples/item.json
+++ b/extensions/scanning/examples/item.json
@@ -5,12 +5,12 @@
   "id": "72360",
   "geometry": null,
   "properties": {
-    "datetime": "1952-04-23T00:00:00.000Z",
+    "datetime": "1952-04-22T12:00:00Z",
     "platform": "Fixed-wing Aircraft",
     "instruments": ["EAGLE IV"],
     "mission": "SURVEY_1",
     "scan:is_original": true,
-    "scan:scanned": "2018-10-01T00:00:00.000Z"
+    "scan:scanned": "2018-09-30T11:00:00Z"
   },
   "links": [],
   "assets": {
diff --git a/extensions/scanning/schema.json b/extensions/scanning/schema.json
index 25725db3..8b6e4991 100644
--- a/extensions/scanning/schema.json
+++ b/extensions/scanning/schema.json
@@ -49,6 +49,7 @@
         "scan:scanned": {
           "title": "Scanned Date",
           "type": "string",
+          "format": "date-time",
           "pattern": "(\\+00:00|Z)$"
         }
       },